ColeopteraChrysomelidae – Leaf Beetles

Pachybrachis pawnee

This record describes Pachybrachis pawnee (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Pachybrachis pawnee - Pachybrachis pawnee
Contributed by Mike Quinn

Elytra yellow, with suture or sutural bead and two discal vittae on each black or brownish. Front claws of male distinctly enlarged; lustre dull, outer elytral vitta confined to the 7th and 8th interspaces. Type Locality: Onaga, Kansas [Pottawatomie County]

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Chrysomelidae (Leaf Beetles)
Subfamily
Cryptocephalinae
Tribe
Cryptocephalini
Genus
Pachybrachis (Scriptured Leaf Beetles)

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

SD-TX, MO

Seasonal Activity

May-Jun

Diet and Behavior

Diet: coll'ed from dock - Rumex (Polygonaceae) ( 3 )

Additional species information

Species notes from the sources

Etymology: Pachybrachis pawnee Fall, 1915

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Pachybrachis pawnee. Species-specific details appear above.

Group overview

Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.

Ecological role of the group

Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.

Economic and practical significance of the group

Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.

Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.

Explore Coleoptera families and species →

Photos of Pachybrachis pawnee (5)

Pachybrachis pawnee - photo 1
Contributed by Mike Quinn
Pachybrachis pawnee - photo 2
Contributed by Mike Quinn
Pachybrachis pawnee - photo 3
Contributed by Mike Quinn
Pachybrachis pawnee - photo 4
Contributed by Mike Quinn
Pachybrachis pawnee - photo 5
Contributed by Mike Quinn

Photo credits: Contributed by Mike Quinn

Frequently Asked Questions About Pachybrachis pawnee

What is Pachybrachis pawnee?

Pachybrachis pawnee is a species in the family Chrysomelidae, within the order Coleoptera.

How big is Pachybrachis pawnee?

3-3.5 mm

How do you identify Pachybrachis pawnee?

Elytra yellow, with suture or sutural bead and two discal vittae on each black or brownish. Front claws of male distinctly enlarged; lustre dull, outer elytral vitta confined to the 7th and 8th interspaces.

Where is Pachybrachis pawnee found?

Range: SD-TX, MO

What does Pachybrachis pawnee eat?

The diet of the Pachybrachis pawnee includes coll'ed from dock - Rumex (Polygonaceae) ( 3 ).

When is Pachybrachis pawnee active?

Pachybrachis pawnee: seasonal activity - May-Jun.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Mike Quinn. Contributors retain copyright over their individual contributions.